SKHY, SK hynix and SK Square: Reference Note

Security relationship

Security	Description
SKHY	Nasdaq-listed SK hynix American Depositary Share
000660.KS	SK hynix common share listed in Korea
402340.KS	SK Square, SK hynix’s listed holding-company shareholder

10 SKHY ADSs represent one SK hynix common share (000660.KS).

SK hynix capitalization

Item	Shares
Issued before the SKHY offering	712,702,365
New common shares underlying SKHY	17,790,000
Issued after the offering	730,492,365
Treasury shares	1,626,865
Outstanding after the offering	728,865,500

The offering issued 177,900,000 SKHY ADSs, representing 17,790,000 common shares, or 2.44% of post-offering issued capital. The underlying common shares are included in the 730,492,365 total.

SK Square ownership

SK Square owns 146,100,000 SK hynix common shares.

Measurement	Ownership
Before the SKHY offering	20.50%
After the SKHY offering	20.0002%

SK Square provides indirect exposure to SK hynix through this holding. As of July 27, 2026, SK hynix represented approximately 98.1% of SK Square’s reported net asset value.

Sources

• SK hynix final SEC prospectus
• Citibank SKHY depositary-receipt record
• Korea Exchange SKHY listing filing
• SK Square NAV disclosure